{"id":9857,"date":"2024-07-31T11:43:34","date_gmt":"2024-07-31T11:43:34","guid":{"rendered":"https:\/\/www.nextias.com\/blog\/?p=9857"},"modified":"2024-07-31T11:46:31","modified_gmt":"2024-07-31T11:46:31","slug":"jet-streams","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/blog\/jet-streams\/","title":{"rendered":"Jet Streams: Meaning, Features, Role &amp; More"},"content":{"rendered":"\n<p><em><strong>Jet Streams<\/strong> are crucial atmospheric phenomena that significantly impact global weather patterns. They play a pivotal role in shaping weather systems and influencing climatic conditions. This article aims to study in detail the characteristics of jet streams, their effects on weather patterns, and the role of various jet streams, including the westerly, tropical easterly, and Somali jets, in shaping the monsoon patterns and other weather conditions across different regions.<\/em><\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_56_1 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#What_are_Jet_Streams\" title=\"What are Jet Streams?\">What are Jet Streams?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Characteristics_of_the_Jet_Streams\" title=\"Characteristics of the Jet Streams\">Characteristics of the Jet Streams<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Types_of_Jet_Streams\" title=\"Types of Jet Streams\">Types of Jet Streams<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Polar_Jet_Streams\" title=\"Polar Jet Streams\">Polar Jet Streams<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Subtropical_Jet_Streams\" title=\"Subtropical Jet Streams\">Subtropical Jet Streams<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Tropical_Easterly_Jet_Streams\" title=\"Tropical Easterly Jet Streams\">Tropical Easterly Jet Streams<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Low-Level_Jet_Streams\" title=\"Low-Level Jet Streams\">Low-Level Jet Streams<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Polar_Night_Jet_Streams\" title=\"Polar Night Jet Streams\">Polar Night Jet Streams<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Westerly_Jet_Streams\" title=\"Westerly Jet Streams\">Westerly Jet Streams<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Position_and_Height_of_Westerly_Jet_Stream\" title=\"Position and Height of Westerly Jet Stream\">Position and Height of Westerly Jet Stream<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Effects_of_Westerly_Jet_Stream_on_weather_conditions\" title=\"Effects of Westerly Jet Stream on weather conditions\">Effects of Westerly Jet Stream on weather conditions<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Winter_Weather_Patterns\" title=\"Winter Weather Patterns\">Winter Weather Patterns<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Summer_Weather_Patterns\" title=\"Summer Weather Patterns\">Summer Weather Patterns<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Tropical_Easterly_Jet_Stream\" title=\"Tropical Easterly Jet Stream\">Tropical Easterly Jet Stream<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Position_and_Height_of_Tropical_Easterly_Jet_Stream\" title=\"Position and Height of Tropical Easterly Jet Stream\">Position and Height of Tropical Easterly Jet Stream<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Effects_of_Tropical_Easterly_Jet_Stream_on_Weather_Conditions\" title=\"Effects of Tropical Easterly Jet Stream on Weather Conditions\">Effects of Tropical Easterly Jet Stream on Weather Conditions<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Winter_Weather_Pattern\" title=\"Winter Weather Pattern\">Winter Weather Pattern<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Summer_Weather_Pattern\" title=\"Summer Weather Pattern\">Summer Weather Pattern<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Somali_Jet\" title=\"Somali Jet\">Somali Jet<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Somalian_Current\" title=\"Somalian Current\">Somalian Current<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#Frequently_Asked_Questions_FAQs\" title=\"Frequently Asked Questions (FAQs)\">Frequently Asked Questions (FAQs)<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#What_are_Jet_Streams-2\" title=\"What are Jet Streams?\">What are Jet Streams?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.nextias.com\/blog\/jet-streams\/#How_do_jet_streams_affect_the_climate_of_India\" title=\"How do jet streams affect the climate of India?\">How do jet streams affect the climate of India?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-c37eea4f4d5788bb5e64046eff51b14e\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"What_are_Jet_Streams\"><\/span><strong>What are Jet Streams?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jet streams are <strong>narrow, strong wind bands <\/strong>that generally blow from west to east across the globe.<\/li>\n\n\n\n<li>They are found at heights ranging from <strong>11 to 13 km<\/strong> above the surface of the Earth.<\/li>\n\n\n\n<li>The mean position of the stream in the Northern Hemisphere is between <strong>20\u00b0N and 50\u00b0N latitude;<\/strong> the polar stream is between <strong>30\u00b0 and 70\u00b0N latitude.<\/strong><\/li>\n\n\n\n<li>They are caused by <strong>great temperature differences between adjacent air masses.<\/strong><\/li>\n\n\n\n<li>There are <strong>four major jet streams.<\/strong> Although discontinuous at some points, they circle the globe at middle and polar latitudes, both in each hemisphere.\n<ul class=\"wp-block-list\">\n<li>Instead of moving along a straight line, the jet stream <strong>flows in a wavelike fashion.<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"462\" height=\"373\" src=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/07\/11.png\" alt=\"Jet Streams\" class=\"wp-image-9859\" srcset=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/07\/11.png 462w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/07\/11-320x258.png 320w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/07\/11-150x121.png 150w\" sizes=\"auto, (max-width: 462px) 100vw, 462px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-8f44482ab28bce29900ddad8cdd55fe9\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Characteristics_of_the_Jet_Streams\"><\/span><strong>Characteristics of the Jet Streams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The salient characteristics of Jet Streams are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Narrow, Strong Wind Bands<\/strong> &#8211; Jet streams are <strong>narrow, strong wind bands<\/strong> that generally blow from west to east across the globe.<\/li>\n\n\n\n<li><strong>Altitude Range<\/strong> &#8211; They are found at <strong>heights between 11 and 13 km<\/strong> above the surface of the Earth.<\/li>\n\n\n\n<li><strong>Mean Position<\/strong> &#8211; The mean position of the stream in the Northern Hemisphere is between <strong>20\u00b0N and 50\u00b0N latitude;<\/strong> the polar stream is between<strong> 30\u00b0 and 70\u00b0N latitude.<\/strong><\/li>\n\n\n\n<li><strong>Cause<\/strong> &#8211; They are caused by<strong> significant temperature differences between adjacent air masses.<\/strong><\/li>\n\n\n\n<li><strong>Number and Continuity<\/strong> &#8211; There are<strong> four major jet streams.<\/strong> Although discontinuous at some points, they circle the globe at middle and polar latitudes, both in each hemisphere.<\/li>\n\n\n\n<li><strong>Flow Pattern<\/strong> &#8211; Instead of moving along a straight line, the jet stream <strong>flows in a wavelike fashion.<\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-6ba48b958ace7be59fae42f09c5fd917\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Types_of_Jet_Streams\"><\/span><strong>Types of Jet Streams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>There are several types of Jet Streams which are as follows:<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-0bba251ca9038e6014b10bfcc2efa58b\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Polar_Jet_Streams\"><\/span><strong>Polar Jet Streams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Polar Jet Streams are found between <strong>50\u00b0 and 70\u00b0 latitude<\/strong> in both hemispheres, at <strong>altitudes of 7 to 12 kilometres,<\/strong> and can reach speeds of up to 250 kilometres per hour.<\/li>\n\n\n\n<li>They form at the boundaries between <strong>cold polar air and warmer mid-latitude air, <\/strong>generally being stronger in winter when the temperature contrast is greater.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-83cc8a8f44fcf0c8f47deecb710d51ae\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Subtropical_Jet_Streams\"><\/span><strong>Subtropical Jet Streams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Subtropical Jet Streams are found <strong>around 30\u00b0 latitude<\/strong> in both hemispheres, at <strong>altitudes of 10 to 16 kilometres, <\/strong>and can reach speeds of up to 150 kilometres per hour.<\/li>\n\n\n\n<li>They form at the boundaries<strong> between tropical and subtropical air masses<\/strong> and are most prominent in winter and early spring.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-442bf2910ad26fc81b60e127dedc06b1\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Tropical_Easterly_Jet_Streams\"><\/span><strong>Tropical Easterly Jet Streams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tropical Easterly Jet Streams are found in the tropics, especially over the Indian Ocean and Africa. They typically occur <strong>between 10\u00b0 and 20\u00b0 latitude <\/strong>north, at <strong>altitudes of 12 to 17 kilometres.<\/strong><\/li>\n\n\n\n<li>These jet streams form during the summer months due to the temperature gradient created when the land heats up more than the ocean, playing a crucial role in the monsoon circulation in South Asia.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-a00571317d2ff384b4e5cac675d413e2\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Low-Level_Jet_Streams\"><\/span><strong>Low-Level Jet Streams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Low-level Jet Streams, found closer to the Earth&#8217;s surface at <strong>altitudes of 0.5 to 3 kilometres, <\/strong>can reach up to 80 kilometres per hour.<\/li>\n\n\n\n<li>They are most common at night and are often associated with severe weather events, such as <strong>thunderstorms and tornadoes,<\/strong> particularly in regions like the <strong>Great Plains of the United States.<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-b968051e1f299975490188f8f223d960\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Polar_Night_Jet_Streams\"><\/span><strong>Polar Night Jet Streams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Polar Night Jet Streams are found in the polar regions, particularly in the stratosphere during winter, at<strong> altitudes of 20 to 30 kilometres.<\/strong><\/li>\n\n\n\n<li>They can reach speeds of up to <strong>300 kilometres per hour.<\/strong><\/li>\n\n\n\n<li>They form due to the significant temperature difference between the <strong>dark polar regions and the sunlit areas at lower latitudes,<\/strong> influencing the dynamics of the polar vortex and the movement of stratospheric ozone.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-e61d9160a4867146c82913eb2052b746\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Westerly_Jet_Streams\"><\/span><strong>Westerly Jet Streams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The <strong>Westerly Jet Stream<\/strong> can be explained under the following headings:<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-4b732414ff040de4002915e2c017dc90\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Position_and_Height_of_Westerly_Jet_Stream\"><\/span><strong>Position and Height of Westerly Jet Stream<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The upper air westerly jet streams are positioned in Asia at a height of about<strong> 12 kilometres<\/strong> in the Troposphere.<\/li>\n\n\n\n<li>These jet streams are <strong>bifurcated <\/strong>due to the mechanical barrier of the <strong>Himalayas <\/strong>and <strong>Tibetan Plateau<\/strong> during northern winter.\n<ul class=\"wp-block-list\">\n<li>One part flows<strong> to the north<\/strong> and the other <strong>to the south <\/strong>of the plateau.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-1f2d39be2deb8c6cb893aaa070299631\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Effects_of_Westerly_Jet_Stream_on_weather_conditions\"><\/span><strong>Effects of Westerly Jet Stream on weather conditions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Since the westerly Jet moves in a <strong>wavy form,<\/strong> it creates <strong>cyclonic <\/strong>and <strong>anti-cyclonic conditions.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Anti-cyclonic conditions <\/strong>are developed in the troposphere over <strong>Afghanistan, Pakistan, and north northwestern parts of India. <\/strong>These conditions result in descending winds over the northwestern parts of India, leading to <strong>atmospheric stability and dry conditions.<\/strong> This prevents the ascent of winds from the surface.<\/li>\n\n\n\n<li><strong>Cyclonic conditions <\/strong>develop over the <strong>Tibet Plateau,<\/strong> where air rises.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Winter_Weather_Patterns\"><\/span><strong>Winter Weather Patterns<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In winter, <strong>rainfall is low<\/strong> due to stability, while some rains occur due to western disturbances brought to India by upper-air westerlies or jet streams. Winds blow <strong>from land to sea.<\/strong><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Summer_Weather_Patterns\"><\/span><strong>Summer Weather Patterns<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In summer, as the sun shifts from the <strong>southern to the northern<\/strong> <strong>hemisphere<\/strong>, the temperature starts rising in the north region of India. This weakens the <strong>south branch<\/strong> of the westerly jet stream, which gradually <strong>withdraws from India <\/strong>by the end of May.<\/li>\n\n\n\n<li>The<strong> equatorial trough <\/strong>pushes <strong>northwards <\/strong>with the weakening of the southern branch, leading to the movement of <strong>monsoon winds<\/strong> inside, and a <strong>burst of monsoon <\/strong>occurs. Hence, the Western Jet Streams have a crucial role in the <strong>onset of the monsoon<\/strong> in India.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-222ff3e8931a48a78bbef5406c9e7ce5\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Tropical_Easterly_Jet_Stream\"><\/span><strong>Tropical Easterly Jet Stream<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The <strong>Tropical Easterly Jet Stream<\/strong> can be explained under the following headings:<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-3840546a846fac735603a3a8b73c2274\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Position_and_Height_of_Tropical_Easterly_Jet_Stream\"><\/span><strong>Position and Height of Tropical Easterly Jet Stream<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In<strong> summer, the Tibetan Plateau<\/strong> starts heating up, becoming a source of<strong> atmospheric heating.<\/strong> This heating generates an <strong>area of rising air.<\/strong><\/li>\n\n\n\n<li>The <strong>ascending air <\/strong>is deflected to the right by the Earth\u2019s rotation and moves in an <strong>anticlockwise direction<\/strong>, creating <strong>anti-cyclonic conditions<\/strong> in the upper troposphere.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-428f6712e6a942bac6c7a5f3792340a9\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Effects_of_Tropical_Easterly_Jet_Stream_on_Weather_Conditions\"><\/span><strong>Effects of Tropical Easterly Jet Stream on Weather Conditions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Under the <strong>cyclonic conditions,<\/strong> the<strong> easterly winds <\/strong>that descend over the Indian Ocean intensify the high-pressure cell known as the <strong>Mascarene High.<\/strong>\n<ul class=\"wp-block-list\">\n<li>From this high-pressure cell,<strong> onshore winds<\/strong> blow towards the <strong>thermally induced low-pressure area <\/strong>in northern India, contributing to the formation of<strong> cyclonic conditions.<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Under the <strong>anti-cyclonic conditions, the Tropical Easterly Jet Streams (TEJ),<\/strong> originating from the Tibetan Plateau, move towards the Indian Ocean.\n<ul class=\"wp-block-list\">\n<li>These easterly jet streams are crucial for a <strong>strong monsoon<\/strong> in India. They help develop <strong>anti-cyclonic conditions<\/strong> in the upper troposphere and influence the distribution of<strong> monsoon rainfall.<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Winter_Weather_Pattern\"><\/span><strong>Winter Weather Pattern<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The<strong> Tropical Easterly Jet Stream disappears<\/strong> with the onset of <strong>winter<\/strong>.<\/li>\n\n\n\n<li>The <strong>warming <\/strong>of Tibet and the development of TEJ are crucial for <strong>strong monsoon <\/strong>conditions in India.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Summer_Weather_Pattern\"><\/span><strong>Summer Weather Pattern<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If Tibet&#8217;s <strong>warming <\/strong>is less in a given year, the <strong>intensity of the monsoon<\/strong> is also reduced.<\/li>\n\n\n\n<li>The <strong>easterly jet stream<\/strong> helps steer tropical depressions into India, which play a significant role in the distribution of <strong>monsoon rainfall.<\/strong> The <strong>tracks of these depressions<\/strong> are areas of <strong>highest rainfall <\/strong>in India.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"463\" height=\"448\" src=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/07\/22.png\" alt=\"Tropical Easterly Jet Stream\" class=\"wp-image-9860\" srcset=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/07\/22.png 463w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/07\/22-267x258.png 267w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/07\/22-434x420.png 434w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/blog\/uploads\/2024\/07\/22-150x145.png 150w\" sizes=\"auto, (max-width: 463px) 100vw, 463px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-cf199a5f4530bdae155cad4c77fb5900\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Somali_Jet\"><\/span><strong>Somali Jet<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>There are also temporary jet streams in addition to polar and subtropical jet streams, which are permanent jet streams.<\/strong><\/li>\n\n\n\n<li>Temporary jet streams are narrow winds with speeds of more than <strong>94 kph in the upper, middle, <\/strong>and sometimes <strong>lower troposphere.<\/strong><\/li>\n\n\n\n<li>Two important temporary jet streams are the <strong>Somali Jet and the African Easterly Jet or Tropical Easterly Jet,<\/strong> which play a crucial role in the formation and progression of <strong>Indian Monsoons.<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-bd5f7f09b2ccaf7f0abd09d284e71397\" style=\"color:#ff6a00\"><span class=\"ez-toc-section\" id=\"Somalian_Current\"><\/span><strong>Somalian Current<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>This current changes its flow direction due to <strong>upwelling and downwelling <\/strong>on the eastern coast of Africa.<\/li>\n\n\n\n<li>In <strong>winter<\/strong>, it flows from <strong>north to south<\/strong> from the coast of Arabia to the East African coastline.<\/li>\n\n\n\n<li>With the onset of the <strong>summer monsoon,<\/strong> it reverses direction, flowing from <strong>south to north.<\/strong><\/li>\n\n\n\n<li>The progress of the <strong>southwest monsoon <\/strong>towards India is significantly aided by the <strong>onset of the Somali Jet,<\/strong> which transits <strong>Kenya, Somalia,<\/strong> and the <strong>Sahel<\/strong>.<\/li>\n\n\n\n<li>It strengthens the <strong>permanent high near Madagascar<\/strong> and helps drive the <strong>southwest monsoons towards <\/strong>India with greater <strong>pace <\/strong>and <strong>intensity<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-d0adc4bd9eb2e9b9b187dc32f0e06642\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In conclusion, jet streams, including the polar, subtropical, and temporary varieties like the Somali and Tropical Easterly Jet Streams, are fundamental to understanding atmospheric dynamics and weather patterns. These influential wind bands not only influence the distribution of rainfall and temperature but also play a critical role in the onset and intensity of monsoon systems. By examining their positions, effects on weather conditions, and interactions with other climatic factors, we gain valuable insights into the complex mechanisms driving global and regional weather patterns.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-618812723183593a2c916a1fd5800128\" style=\"color:#015aa7\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_FAQs\"><\/span><strong>Frequently Asked Questions (FAQs)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1722424724480\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"What_are_Jet_Streams-2\"><\/span><strong>What are Jet Streams?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Jet streams are fast-flowing, narrow air currents in the upper atmosphere, primarily near the tropopause. They are located at high altitudes and are formed by the temperature differences between the polar and tropical air masses.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1722424796317\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"How_do_jet_streams_affect_the_climate_of_India\"><\/span><strong>How do jet streams affect the climate of India?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Jet streams significantly impact the climate of India by influencing the monsoon winds. The subtropical jet stream, in particular, affects the onset and withdrawal of the Indian monsoon. During summer, its northward shift allows the monsoon winds to bring heavy rains, while its southward change of winter leads to drier conditions. Additionally, western disturbances associated with jet streams bring winter rainfall to northern India.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Jet Streams are crucial atmospheric phenomena that significantly impact global weather patterns..<\/p>\n","protected":false},"author":9,"featured_media":9863,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67,832],"tags":[],"class_list":["post-9857","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-geography","category-indian-geography"],"_links":{"self":[{"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/posts\/9857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/comments?post=9857"}],"version-history":[{"count":4,"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/posts\/9857\/revisions"}],"predecessor-version":[{"id":9865,"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/posts\/9857\/revisions\/9865"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/media\/9863"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/media?parent=9857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/categories?post=9857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/blog\/wp-json\/wp\/v2\/tags?post=9857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}